<!DOCTYPE html>
<html>
	<head>
		<meta charset="UTF-8">
		<title></title>
		<style type="text/css">
			#box{
				width: 300px;
				height: 200px;
				border: 3px solid red;
				display: flex;
				flex-wrap: wrap;
				align-content: stretch;
			}
			#box div{
				border: 1px solid blue;
			}
		</style>
	</head>
	<body>
		<div id="box">
			<div>div1</div>
			<div>我是div2，我的最高</div>
			<div>我是div3</div>
			<div>div4测</div>
			<div>div5</div>
			<div>div6测试测试测试</div>
			<div>div7</div>
			<div>div8测试测试测试测试</div>
			<!--<div>div9测试</div>-->
			<!--<div>div10</div>
			<div>11</div>-->
		</div>
	</body>
</html>
